Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
A crocodile always grows new teeth to replace the old teeth!
15
When it comes time to give birth, the female shark loses her appetite so she won't be tempted to eat her own pups.
280
A 42-foot sperm whale has about 7 tons of oil in it.
209
Bluebirds cannot see the color blue.
40
Hummingbirds can weigh less than a penny!
12
At one 'feeding', a mosquito can absorb one and a half times its own weight in blood.
-1
An ostrich's eye is bigger than its brain.
32